Most of us can see that 2012’s four big trends will get bigger next year: mobile, social, cloud, and big data. Market-research company IDC has gone one further, predicting how these trends will unfold next year—to the tune of billions of dollars.

Like this:

No one likes junk mail, and the average US household receives some 850 pieces of it over the course of a year. Whereas French Pubeco aims to shift such communications to the online sphere, Readabl’s PaperKarma mobile app lets users submit a photograph of each piece of junk mail they’d like to stop receiving, and then works to make that happen.

Like this:

Here’s put together a deck on the current trends in e-commerce, including the explosion of innovation in the past few years. There is focus on the impact of social and mobile, as well as the innovation spurred by the lousy economy.